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Phthalates in glass window films in university dormitories in Beijing, China, and exposure implications

机译：在北京，中国的大学宿舍玻璃窗膜中邻苯二甲酸盐和曝光含义

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摘要

Phthalate concentrations were measured in glass window films in 145 dormitories at 13 universities in Beijing, China, from May to December 2019. We analyzed phthalate characteristics, examined possible phthalate sources, compared concentration differences between female and male dormitories and between sunny and shaded dormitories, and estimated the phthalate intake via dust ingestion, inhalation, and dermal absorption through direct air-through-skin pathways using Monte Carlo simulations. DCHP and DEHP were the most predominant phthalates in the window films, followed by DnBP, with median concentrations one to two orders of magnitude higher than those of the other phthalates. The contributions of DnBP, DCHP and DEHP to the total phthalate concentration were in the range of 2.2?45.9%. Phthalates in window films might have four indoor sources. The concentrations of six phthalates and ?PAEs were higher in female dormitories than in male dormitories. Most phthalates showed no significant difference between sunny and shaded dormitories because the effects of temperature and photodegradation may have negated one another. The median phthalate intake ranged from 0.54 ng/(kg?day) to 4.61 ?g/(kg?day). DMP and DEP exposures were the highest, followed by those of DiBP and DnBP. The intakes of 11 phthalates were higher for female students. Dermal absorption was the main exposure pathway of DMP, DEP, DiBP, DnBP, DMEP, DPP, DHP, and BBzP (contribution: 48.7?72.9%). For the other phthalates, dust ingestion was the main pathway (contribution: 64.5?97.5%).
机译：从5月到2019年12月，在中国北京13所大学的145所大学的玻璃窗膜中测量了邻苯二甲酸盐浓度。我们分析了邻苯二甲酸酯特征，检查了可能的邻苯二甲酸盐来源，比较了女性和男性宿舍之间的浓度差异，阳光明媚和阴影宿舍之间，通过使用Monte Carlo模拟通过直接通风途径通过灰尘摄入，吸入和皮肤吸收邻苯二甲酸酯摄入量。 DCHP和DEHP是窗膜中最主要的邻苯二甲酸酯，其次是DNBP，中值浓度比其他邻苯二甲酸酯的数量级高。 DNBP，DCHP和DEHP对总邻苯二甲酸盐浓度的贡献在2.2？45.9％的范围内。窗膜中的邻苯二甲酸盐可能有四个室内源。六个邻苯二甲酸酯的浓度和βPaes在女性宿主中比男性宿舍更高。大多数邻苯二甲酸盐在阳光明显和阴影宿舍之间没有显着差异，因为温度和光降解的影响可能彼此否定。邻苯二甲酸位摄入量为0.54 ng /（kg？日）至4.61？g /（kg？日）。 DMP和DEP曝光是最高的，其次是DIBP和DNBP。女学生11种邻苯二甲酸盐的摄入量更高。皮肤吸收是DMP，DEP，DIBP，DNBP，DMEP，DPP，DHP和BBZP的主要曝光途径（贡献：48.7？72.9％）。对于其他邻苯二甲酸盐，尘埃摄入是主要途径（贡献：64.5？97.5％）。

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  • 来源
    《Building and Environment》 |2021年第6期|107813.1-107813.9|共9页
  • 作者

    Wang Lixin; Zhao Anqi; Wang Kexin; Liu Fang;

  • 作者单位

    Beijing Univ Civil Engn & Architecture Beijing Key Lab Heating Gas Supply Ventilat & Air Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Key Lab Heating Gas Supply Ventilat & Air Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Key Lab Heating Gas Supply Ventilat & Air Beijing 100044 Peoples R China;

    Beijing Univ Civil Engn & Architecture Beijing Key Lab Heating Gas Supply Ventilat & Air Beijing 100044 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Phthalates; Glass film; Dormitory; Exposure; Indoor;

    机译：邻苯二甲酸盐;玻璃膜;宿舍;曝光;室内;

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